Gold prices sprinted past the $1,000 an ounce mark this morning, and silver climbed even faster to approach $17. But this might also be taken as a warning that investors are about to shift out of stocks which are looking very overbought.

Shares have enjoyed a huge rally in most markets since the lows of March and have been riding for a fall for more than a month. Last week investors also ominously moved money heavily into bonds, depressing yields, and the gold and silver price surge may represent another shift to risk aversion.